Vehicle Power Supply Controller Mode Selection
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Solution Overview
Problem
Existing vehicle power supply systems automatically start the engine to generate power when the battery charge is low, which is undesirable in certain situations such as when the vehicle is parked in a garage or at night due to emission and noise concerns.
Innovation Solution
A vehicle system that includes an engine, electric motor, and controller, allowing users to select whether to permit or prohibit engine power generation based on usage modes, such as a drive mode switch or communication with a user terminal, to control power supply to external devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the engine is automatically started to generate power when battery charge is low, then the power supply reliability is improved, but the emissions and noise increase
Solution Approach 1:
The patent applies dynamics by making the engine operation status adjustable rather than fixed. The controller dynamically changes engine operation based on user-selected modes (first mode: engine off, second mode: engine on to generate power). This resolves the contradiction by allowing the system to adapt between reliability and environmental impact based on real-time user needs.
Solution Approach 2:
The patent changes the operational parameter of engine status from automatic to user-selectable. By introducing a mode selection mechanism that changes the engine operation parameter, the system can switch between generating power reliably (second mode) and minimizing emissions/noise (first mode), thus resolving the technical contradiction.
2Power
If the engine operation is permitted to ensure power supply, then the power generation capability is improved, but the user convenience deteriorates due to unwanted engine startup
Solution Approach 1:
The patent applies self-service by allowing users to independently control engine operation through mode selection. Users can自主选择 whether the engine should operate based on their own needs and circumstances, eliminating unwanted automatic engine startup while maintaining power generation capability when needed. This resolves the contradiction by giving users direct control over the system's behavior.
3Power
If the engine is operated to generate power, then the electric power supply is improved, but the fuel consumption increases
Solution Approach 1:
The patent makes fuel consumption dynamic by linking engine operation to user-selected modes. In the first mode, the engine remains off to minimize fuel consumption. In the second mode, the engine operates to generate power when users specifically need it. This dynamic approach resolves the contradiction between power supply and fuel consumption by allowing users to optimize based on their priorities.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables users to determine engine operation according to vehicle usage, reducing unwanted engine startup and emissions, improving convenience and environmental impact.
Implementation Method 1
an electric motor, which generates electric power by using driving force of the engine
Data Source
AI summary
A vehicle includes an engine, an electric motor, an electrical storage device and a controller. The electric motor generates electric power by using driving force of the engine. The controller controls supply of electric power, which is at least one of electric power generated by the electric motor or electric power stored in the electrical storage device, to an outside of the vehicle. The controller selects, on the basis of setting made by a user, whether to permit or prohibit generation of electric power by using the driving force of the engine.